Throttling is used to limit the flow into communication channels that need it. The GXF platform has throttling support for CDMA and SMS/texting.

CDMA throttling

The CDMA network uses base transceiver stations (BTS) with cells for each BTS.
Throttling occurrs on the number of concurrent connections per BTS/cell. GXF offers a throttling service that hands out permits per BTS/cell while maintaining the configurable limit.
An application will typically use this service like this:
Sequence diagram CDMA throttling

SMS/texting throttling

SMS can be used to wake up certain types of devices. Throttling in this context means limiting the number of messages per second to a configurable rate.